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ALYSSA WORCESTER PA-C
NPI 1629805544
Physician Assistant in Billings, MT

Active since September 16, 2024PECOS EnrolledAccepts Medicare Assignment
1144 N BROADWAY STE C, BILLINGS, MT 59101(406) 238-6380 Get Directions Write a Review

NPPES record last updated: July 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Alyssa Worcester Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALYSSA WORCESTER PA-C (NPI 1629805544) is an individual physician assistant in Billings, Montana, licensed in Montana (MED-PAC-LIC-145411) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, is affiliated with St Vincent Healthcare, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1629805544
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameALYSSA WORCESTERCredential: PA-C
Location Address1144 N BROADWAY STE CBillings, MT 59101-0115
Mailing Address1144 N Broadway Ste CBillings, MT 59101-0115 · (406) 970-9092
Phone(406) 238-6380
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 16, 2024
Last NPPES UpdateJuly 21, 2025
NPPES CertifiedJuly 21, 2025
✔ NPI 1629805544 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MT · MED-PAC-LIC-145411
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1144 N BROADWAY STE C, Billings, MT 59101
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alyssa Worcester Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961934732
PECOS Enrollment IDI20241017002722
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Vincent Healthcare

Acute Care Hospitals · Billings, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number270049
Location1233 N 30th StBillings, MT 59101 · Yellowstone County
Emergency services Birthing friendly

Sidney Health Center

Critical Access Hospitals · Sidney, MT
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number271344
Location216 14th Ave SWSidney, MT 59270 · Richland County
Emergency services Birthing friendly

Holy Rosary Healthcare

Critical Access Hospitals · Miles City, MT
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number271347
Location2600 Wilson StMiles City, MT 59301 · Custer County
Emergency services Birthing friendly

Cody Regional Health

Critical Access Hospitals · Cody, WY
OwnershipGovernment - Hospital District or Authority
CMS Certification Number531312
Location707 Sheridan AvenueCody, WY 82414 · Park County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$87.97 typical visit price
range $56.81 – $172.26
Typical copayment $21.99 (range $14.20 – $43.06)
Most-billed visit code 99203
Established Patient
$70.82 typical visit price
range $18.24 – $140.32
Typical copayment $17.70 (range $4.56 – $35.08)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PAMELA JULIANNA BARR
Nurse Practitioner (Family)
1144 N BROADWAY STE C
BILLINGS, MT 59101
Yellowstone County (406) 238-6380
TAYLOR KLEIN FNP
Nurse Practitioner
1144 N BROADWAY STE C
BILLINGS, MT 59101
Yellowstone County (406) 238-6380

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alyssa Worcester's NPI number?

The NPI number for Alyssa Worcester is 1629805544. It was assigned to this individual provider in the NPPES registry on September 16, 2024.

Where is Alyssa Worcester located?

Alyssa Worcester practices at 1144 N Broadway Ste C, Billings, MT 59101. The listed phone number is (406) 238-6380.

What is Alyssa Worcester's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Alyssa Worcester enrolled in Medicare?

Yes. Alyssa Worcester is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Alyssa Worcester accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and Providence Health Plan list Alyssa Worcester as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Alyssa Worcester affiliated with any hospitals?

According to CMS data, Alyssa Worcester is affiliated with St Vincent Healthcare, Sidney Health Center, Holy Rosary Healthcare and Cody Regional Health.

When was this NPI record last updated?

The NPPES record for Alyssa Worcester was last updated on July 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.